Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9258640 | Compact noise suppression circuit for small speakers | — | 2016-02-09 |
| 9232295 | Ear canal ear bud sound system | — | 2016-01-05 |
| 5917922 | Method of operating a single loud speaker drive system | — | 1999-06-29 |
| 5615272 | Single loud speaker drive system | — | 1997-03-25 |
| 5519781 | Self damping speaker matching device and method | — | 1996-05-21 |
| 5373563 | Self damping speaker matching device | — | 1994-12-13 |